我正在使用3个12E系列的NodeMCU，每个将不同位置的温度数据发送到另一个充当Master的NodeMCU。现在我面临的问题是我无法一次将所有三个设备数据发送到Thingspeak云。有人可以建议如何解决吗？预先感谢
我在不同温度区域设置了3个NodeMCU设备，这些设备连接到常见的WiFi路由器，还有一个主NodeMCU，用于接收数据并进行处理。我已经对3个单独的设备进行了编程，以发送彼此之间有10秒间隔的数据。主设备从每个设备以10秒的时间间隔接收所有3个设备数据。并将接收到的数据发布到Thingspeak云中。现在我面临的问题是我能够将2个设备数据发送到云，而无法发送另一个设备数据。我不明白问题出在哪里。
#include <SPI.h>
#include <ESP8266WiFi.h>
#define TCP_MSS
#define LWIP_IPV6
#define LWIP_FEATURES
#define LWIP_OPEN_SRC
String apiKey_RTD = "",apiKey_RFTD = "",apiKey_HLB = ""; // Enter your Write API key from ThingSpeak
byte ledPin = 16,lock=0,showonce=1,dispRTD=0,dispRFTD=0,dispHLB=0;
char ssid[] = "freewifi"; // SSID of your home WiFi
char pass[] = "6666666666"; // password of your home WiFi
const char* cloudserver = "api.thingspeak.com";
String request,request1,mybigdata,myRTDvalues,myRFTDvalues,myHLBvalues,mytemp,myhumi,myfridgetemp,myfridgehumi,mylightvalue,mylightstatus;
WiFiServer server(80);
IPAddress ip(184,106,153,149); // IP address of the server,
IPAddress gateway(192,168,43,1); // gateway of your network,
IPAddress subnet(255,255,255,0); // subnet mask of your network,WiFi
void setup() {
Serial.begin(115200); // only for debug
WiFi.config(ip, gateway, subnet); // forces to use the fix IP
WiFi.begin(ssid, pass); // connects to the WiFi router
while (WiFi.status() != WL_CONNECTED)
{
Serial.print(".");
delay(500);
}
server.begin(); // starts the server
Serial.println("Connected to wifi");
Serial.print("Status: "); Serial.println(WiFi.status()); // some parameters from the network
Serial.print("IP: "); Serial.println(WiFi.localIP());
Serial.print("Subnet: "); Serial.println(WiFi.subnetMask());
Serial.print("Gateway: "); Serial.println(WiFi.gatewayIP());
Serial.print("SSID: "); Serial.println(WiFi.SSID());
Serial.print("Signal: "); Serial.println(WiFi.RSSI());
Serial.print("Networks: ");
Serial.println(WiFi.scanNetworks());
pinMode(ledPin, OUTPUT);
delay(2000);
}
void loop () {
WiFiClient client = server.available();
if (client)
{
if (client.connected())
{
Serial.println("Client connected");
digitalWrite(ledPin, LOW); // to show the communication only (inverted logic)
Serial.println(".");
//***************************Temperature receive code added from here*******************************//
request = client.readStringUntil('\r'); // receives the message from the client
//Serial.println(request);
mybigdata = request;
if(request.substring(1,2)=="T")
{
myRTDvalues = request;
}
if(request.substring(1,2)=="F")
{
myRFTDvalues = request;
}
if(request.substring(1,2)=="L")
{
myHLBvalues = request;
}
Serial.print("Room Temperature = ");
Serial.println(myRTDvalues);
Serial.print("Refrigerator Temperature = ");
Serial.println(myRFTDvalues);
// Serial.print("Hoarding Board = ");
// Serial.println(myHLBvalues);
// Serial.println();
//****************************DATA FROM RTD WILL BE PROCESSED HERE*********************************//
if(mybigdata.substring(1,2)=="T")
{
dispRTD=1;
mytemp=mybigdata.substring(3,8);
//Serial.print("Temperature data from RTD: ");
//Serial.println(mytemp);
myhumi=mybigdata.substring(8,13);
//Serial.print("Humidity data from RTD: ");
//Serial.println(myhumi);
client.flush();
client.println("Hi RTD!I received your data.\r");
digitalWrite(ledPin, HIGH);
}
//**************************************DATA FROM RFTD WILL BE PROCESSED HERE************************************************//
if(mybigdata.substring(1,2)=="F")
{
dispRFTD=1;
myfridgetemp=mybigdata.substring(4,9);
//Serial.print("Temperature data from RFTD: ");
//Serial.println(myfridgetemp);
myfridgehumi=mybigdata.substring(9,14);
//Serial.print("Humidity data from RFTD: ");
//Serial.println(myfridgehumi);
client.flush();
client.println("Hi RFTD!I received your data.\r");
digitalWrite(ledPin, HIGH);
}
if(mybigdata.substring(1,2)=="L")
{
dispHLB=1;
mylightvalue=mybigdata.substring(3,4);
//Serial.print("Light status value from HLB: ");
//Serial.println(mylightvalue);
if(mylightvalue == "0")
{
mylightstatus="OFF";
}
if(mylightvalue == "1")
{
mylightstatus="ON";
}
client.flush();
client.println("Hi HLB!I received your data.\r");
digitalWrite(ledPin, HIGH);
}
}
client.stop(); // tarminates the connection with the client
if(dispRTD)
{
//Serial.println("Master disconnected from RTD but RTD is still in connection");
}
if(dispRFTD)
{
//Serial.println("Master disconnected from RFTD but RFTD is still in connection");
}
if(dispHLB)
{
//Serial.println("Master disconnected from HLB but HLB is still in connection");
}
lock=1;
showonce=0;
}
else
{
if(showonce==1)
{
if(dispRTD)
{Serial.println("\n!!!!!RTD not connected!!!!!\n");}
if(dispRFTD)
{Serial.println("\n!!!!!RFTD not connected!!!!!\n");}
if(dispHLB)
{Serial.println("\n!!!!!HLB not connected!!!!!\n");}
showonce=0;
}
}
//***************************data to thingspeak******************************************//
if(lock==1)
{
if (client.connect(cloudserver,80)) // "184.106.153.149" or api.thingspeak.com
{
if(dispRTD)
{
Serial.print("Room Temperature data from RTD: ");
Serial.println(mytemp);
Serial.print("Room Humidity data from RTD: ");
Serial.println(myhumi);
String sendData = apiKey_RTD+"&field1="+String(mytemp)+"&field2="+String(myhumi)+"\r\n\r\n";
Serial.println(sendData);
client.print("POST /update HTTP/1.1\n");
client.print("Host: api.thingspeak.com\n");
client.print("Connection: close\n");
client.print("X-THINGSPEAKAPIKEY: "+apiKey_RTD+"\n");
client.print("Content-Type: application/x-www-form-urlencoded\n");
client.print("Content-Length: ");
client.print(sendData.length());
client.print("\n\n");
client.print(sendData);
//Serial.println("Connecting to Thingspeak to send RTD data...");
//dispRTD=0;
}
if(dispRFTD)
{
Serial.print("Fridge Temperature data from RFTD: ");
Serial.println(myfridgetemp);
Serial.print("Fridge Humidity data from RFTD: ");
Serial.println(myfridgehumi);
String sendData = apiKey_RFTD+"&field1="+String(myfridgetemp)+"&field2="+String(myfridgehumi)+"\r\n\r\n";
Serial.println(sendData);
client.print("POST /update HTTP/1.1\n");
client.print("Host: api.thingspeak.com\n");
client.print("Connection: close\n");
client.print("X-THINGSPEAKAPIKEY: "+apiKey_RFTD+"\n");
client.print("Content-Type: application/x-www-form-urlencoded\n");
client.print("Content-Length: ");
client.print(sendData.length());
client.print("\n\n");
client.print(sendData);
//Serial.println("Connecting to Thingspeak to send RFTD data...");
//dispRFTD=0;
}
if(dispHLB)
{
Serial.print("Light Status: ");
Serial.print(mylightstatus);
String sendData = apiKey_HLB+"&field1="+String(mylightvalue)+"&field2="+String(mylightstatus)+"\r\n\r\n";
Serial.println(sendData);
client.print("POST /update HTTP/1.1\n");
client.print("Host: api.thingspeak.com\n");
client.print("Connection: close\n");
client.print("X-THINGSPEAKAPIKEY: "+apiKey_HLB+"\n");
client.print("Content-Type: application/x-www-form-urlencoded\n");
client.print("Content-Length: ");
client.print(sendData.length());
client.print("\n\n");
client.print(sendData);
//Serial.println("Connecting to Thingspeak to send HLB data...");
//dispHLB=0;
}
}
// Serial.println("Sending to Cloud....");
// delay(5000);
lock=0;
showonce=1;
}
}
预期结果是我需要将所有3个设备数据发布到Thingspeak云中，并且在主设备上接收到时每个设备的数据都不会冲突